Advanced Search

Citation: Fan-Yun Meng, Ying-Qin Wei, Heng Lu, Xiao-Teng Zhou, Jin-Xin Liu, Geng Li, Jing-Yi Hou. Chelatometric dispersive liquid-liquid microextraction followed by capillary electrophoresis for the analysis of total and water soluble copper in Rhizoma coptidis[J]. Chinese Chemical Letters, ;2013, 24(6): 506-508. shu

Chelatometric dispersive liquid-liquid microextraction followed by capillary electrophoresis for the analysis of total and water soluble copper in Rhizoma coptidis

  • 1.

    a Beijing Key Laboratory of Protection and Utilization of Chinese Medicine, Beijing Normal University, Beijing 100875, China;

  • 2.

    b School of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250353, China;

  • 3.

    c Institute of Natural Medicine and Chinese Medicine Resources, Beijing Normal University, Beijing 100875, China

  • Corresponding author: Ying-Qin Wei, 
  • Received Date: 8 January 2013
    Available Online: 13 March 2013

  • A new method for the analysis of copper and its speciation in Rhizoma coptidis was proposed using chelatometric dispersive liquid-liquid microextraction (cDLLME) followed by capillary electrophoresis. Dithizone was used as a chelating agent for extraction and carbon tetrachloride and ethanol were used as extraction and dispersive solvent, respectively. The calibration curve was linear in the range of 0.5-20.0 μg/mL with a correlation coefficient of 0.9990 (n = 6) and the average recovery was in the range of 88.26%-94.44%. The method was successfully used to determine the total and water soluble copper in Rhizoma coptidis herbal medicine. The results suggested that it would be reasonable to setting the criterion of heavy metals in an herbal medicine according to the dosage forms.
  • 加载中
    1. [1]

      [1] H.B. Cao, Y. Jiang, J.J. Chen, et al., Arsenic accumulation in scutellaria baicalensis georgi and its effects on plant growth and pharmaceutical components, J. Hazard. Mater. 171 (2009) 508-513.

    2. [2]

      [2] S.X. Li, F.Y. Zheng, Y. Huang, J.C. Ni, Thorough removal of inorganic and organic mercury from aqueous solutions by adsorption on lemna minor powder, J. Hazard. Mater. 186 (2011) 423-429.

    3. [3]

      [3] J.R. Chen, S.M. Xiao, X.H. Wu, K.M. Fang, W.H. Liu, Determination of lead in water samples by graphite furnace atomic absorption spectrometry after cloud point extraction, Talanta 67 (2005) 992-996.

    4. [4]

      [4] D. Afzali, M.A. Taher, A. Mostafavi, S.Z.M. Mobarakeh, Thermal modified kaolinite as useful material for separation and preconcentration of trace amounts of manganese ions, Talanta 65 (2005) 476-480.

    5. [5]

      [5] S. Candir, I. Narin, M. Soylak, Ligandless cloud point extraction of Cr(Ⅲ), Pb(Ⅱ), Cu(Ⅱ), Ni(Ⅱ), Bi(Ⅲ), and Cd(Ⅱ) ions in environmental samples with Tween 80 and flame atomic absorption spectrometric determination, Talanta 77 (2008) 289-293.

    6. [6]

      [6] A. Shokrollahi, M. Ghaedi, O. Hossaini, N. Khanjari, M. Soylak, Cloud point extraction and flame atomic absorption spectrometry combination for copper(Ⅱ) ion in environmental and biological samples, J. Hazard. Mater. 160 (2008) 435-440.

    7. [7]

      [7] V.A. Lemos, M.S. Santos, et al., Determination of copper in water samples by atomic absorption spectrometry after cloud point extraction, Microchim. Acta 157 (2007) 215-222.

    8. [8]

      [8] S.Z. Mohammadi, D. Afzali, M.A. Taher, Y.M. Baghelani, Ligandless dispersive liquid-liquid microextraction for the separation of trace amounts of silver ions in water samples and flame atomic absorption spectrometry determination, Talanta 80 (2009) 875-879.

    9. [9]

      [9] A. Bidari, E.Z. Jahromi, Y. Assadi, M.R.M. Hosseini, Monitoring of selenium in water samples using dispersive liquid-liquid microextraction followed by iridiummodified tube graphite furnace atomic absorption spectrometry, Microchem. J. 87 (2007) 6-12.

    10. [10]

      [10] N. Fattahi, S. Samadi, Y. Assadi, M.R.M. Hosseini, Solid-phase extraction combined with dispersive liquid-liquid microextraction-ultra preconcentration of chlorophenols in aqueous samples, J. Chromatogr. A 1169 (2007) 63-69.

    11. [11]

      [11] E.Z. Jahromi, A. Bidari, Y. Assadi, M.R.M. Hosseini, M.R. Jamali, Dispersive liquid-liquid microextraction combined with graphite furnace atomic absorption spectrometry-ultra trace determination of cadmium in water samples, Anal. Chim. Acta 585 (2007) 305-311.

    12. [12]

      [12] P. Liang, H.B. Sang, Determination of trace lead in biological and water samples with dispersive liquid-liquid microextraction preconcentration, Anal. Biochem. 380 (2008) 21-25.

    13. [13]

      [13] M.T. Naseri, M. Hosseini, Y. Kiani, Rapid determination of lead in water samples by dispersive liquid-liquid microextraction coupled with electrothermal atomic absorption spectrometry, Talanta 75 (2008) 56-62.

    14. [14]

      [14] Q.X. Zhou, N. Zhao, G.H. Xie, Determination of lead in environmental waters with dispersive liquid-liquid microextraction prior to atomic fluorescence spectrometry, J. Hazard. Mater. 189 (2011) 48-53.

    15. [15]

      [15] F.Y. Meng, Y.Q. Wei, H. Lu, X.X. Liu, J.X. Liu, Simultaneous analysis of Cu and Pb as ABEDTA complexes in Rhizoma coptidis by capillary electrophoresis coupled with solid phase extraction, Chin. Chem. Lett. 23 (2012) 591-594.

    16. [16]

      [16] Y.Q. Zhao, J.P. Zheng, L. Fang, et al., Speciation analysis of mercury in natural water and fish samples by using capillary electrophoresis-inductively coupled plasma mass spectrometry, Talanta 89 (2012) 280-285.

  • 加载中
    1. [1]

      Dan Zhou , Liangjin Bao , Haoqi Long , Duo Zhou , Yuwei Xu , Bo Wang , Chuanqin Xia , Liang Xian , Chengbin Zheng . Capillary electrophoresis as sample introduction system for highly sensitive and interference-free determination of 99Tc by ICP-MS. Chinese Chemical Letters, 2025, 36(4): 110093-. doi: 10.1016/j.cclet.2024.110093

Get Citation
PDF
XML
Metrics
  • PDF Downloads(0)
  • Abstract views(788)
  • HTML views(5)

通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888
Powered By info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return